Fire hose safety bracket



March 20, 1945. N, DUFF|ELD E1-AL 2,371,959

FIRE HosE SAFETY BRACKET Filed April 1e, 1941 NURMAN H DUFHELU l= E7 M CHARLES E LA/:HSUN

Illlll Il 114 abro/WWA.

11E/ 21 www Patented Mar. 20, 1945 oFF! " aware' In manufacturingplants saboteurs have'ure'- y sorted: to plugging upf'i're hoses:nozzles;.partic ularly the vnozzles ofrportablefre extinguishers soy thatn the evenhofrreitiisiimp'ossible torus'e.: them. The `presenth :invention Y v'contennrilates sa:

shield for nre :hose nozzlesf'which iprotects:andT

covers Atheoperative:cipeningsrtherecii; '.th'e shields? beingfrangibleiso vv'that lre :hosesfsor protected are: readily available- .for emergency Quseir :Howeven: at theisame time ia .'rez hose nozzlev pirot'eutedivvith` a lshieldv according .to2the3presentiinvention; ,which has been tampered with, Will readily'haveiitnat fact revealed :by Athe brokenashie'ldzs l An obj ectoffthe presentiinvention:isitoiprovide 'a safety braoketlfor:fsupportingf-fiie'mose nozzles. and'theilike against tampering. i I i. Another object 'of @the :invention is tot provideaaf shield for :protecting vthe :operative opening roffa' fire lhosenozzle.L f f V'Aistill .further pobject..of' .the inventi'nnzis to: provide a 'irangib'le .covering for i a-ifire. .hosei nozzle; Amaking Yitmeeessary to 'breaktherooveningi irl/order to Yuse I:tl're'rnozzle orzto h'avelaceessrto;

the operativeopeningithereoi.

These and other'.objects-mesiding:iinthe f-ar-J-I-f rangement, -zcornbina'tion,v Land construction Lof the lapsiictionzaprille, 19411, seriairnmssavsu i ys'clajmsiY (.01. 222-530) y 6 forfrec'eivingalbeadlfl arrangedat'the bottom of They shieldfS-is also` provided with va lower cylindrical fpor-tion' 8 arranged to f telesoopically fit` intona bore"9`1 in aclamping? member vlill. The olampingmember' -Il' isA preferably kof some mold'- ablematerial; suchaslasyntheticresin and is cylindriealinorm. The A'bor-.e v 9 ftherein clamps -'the halves fdwof thelsliield-'S yagainst fthefnozzle 2, and when solc'lainped the bead-'I ontlie-nozzlez, seating inthefannularlrecess Gprevents Withdrawal ofthenozzle'Z:from-ftlieshield'; 1

ln'forderito maintain ltliel cylindrical portion 8' o-f-f the` shield53 Within. .the Abore F9; there 'is f providedafspring. :clip fl IL 1in-:the fbore! 9; shown particulaily` inFie..l3,the-fspring clip II being provided. with ioppositlyf (disposed hooked.4 ends I2;

` The ends I2 engage behind:shouldersv I.3,provided.

parts will .he apparent from-,the following 'speci-I fication when'l taken with 'the' accompanying-r drawing,:in\.which f 1, s I 1, Fig. 1 fis. a partial 'vertical-rseetion'aof; a;. ,eon.\ struction according' towthe: :,presentyl'inventioni showing the samesupportedabya wall abracket. Fig. 2 islthe section pofialine,II-HiofFigi1, Fig. 3.is aperspectiveiviewoaspring'clip comprising adetailofzthestructure; f. f Fig. 4 isxal perspective l'view oi. a. half;v Iseritionmf'. thetnozzle shield, f v; u -lig. 5. is'vavertical sectionshowing:analters4 nativeforni. ofith'e;inventioInl-and1v J Fig. 6Y is a partialssecti'onfshowing ystill anotnen form of the invention. Referring particularly to thefdrawing; 'the' refence character I findicates a iirehose=conne'ctedf` to a portable y'liresextinguislfier, '-notis'hown; l-or t'o someA other source of v4'fire f'gliting Slu'id.' ESecuredi. to'the 'hoseI is v'a dispensing nozzle-zf'fforfthe:re fighting` ui'd conducted'A by the'jho'se Ii .-'Iih'el nozzle v`2 Ais disposed' in alshield' 3; 'consistingYony halves 4; showniparti'cularlyiin Figs.; 1, 52;.andf4.. The shield 3"'is'hprovided with arcup shapedifpnr# tion\5"=hav-ingtherein anvinternallannularirecess 55! portionlissinsertediintosbcreT9Q`theh00kedfonds? Si The lower end'iofthezcylindrical portionsis" springclip I-Ivslightly apart: In l.orcler'to'permit the'finn'er vedge :of the vcylindrical@portion B' ,to move intoxthe borew9- past the hooked-ends lf2 of' thespring clip H, l,theoylindrical` portion -.8 iszpro-f vided =beneath the :ashoulders- -l3 with f grooves-I5,

shownlparticuiarly in Figari: v

The clamping member I0 is provided with :af

metalrin'sert I-I tofwhichqthefspringclip II issecuredfbyfafscrew I8;y Theinsert I'Ihasan integrail-projecting rivetf I9, whichextends through member .tisssecuredftofthe Wall bracket 21 by headingaupjthe:rivet 11.9 Iover the ibore 2.o to vpro-` vide a head 22,;.asfs'ho'wn particularly in "Fig, 1. The Wall bracket'. lamay befsecured .rigidly to .a Wall: :25a: in any suitable manner.

. SIheUperatiOn Aoirthe device-accordingto the present '.inventiomis as follows: The:v two :halves 4 of the shield 3 aredisposedxover'the end' of'- the :nozzlefZA insuch a-mannerxas to seat the head1 at'the :outer-'zend' of v'tire nozzle 2 inithe annulariinternaltreoess :61' within lthe shield 1.3.l

Thecyl'indrioalportibn fofftheishiel'd 3 is thendisposedI indrhevbro're.19:Y of :the clamping member tosto .clamp the-sshieldi'S-onto the inozzlefz. and' against :removal `vtherefrom. As 'the cylindricall I 2 of the spring clip I I seat behind the shoulders I3 of the cylindrical portion 8 to prevent removal of the cylindrical portion 8 from the bore 9. thereby locking the nozzle 2, the shield 3, and the clamping member I together. In order to make the nozzle 2 available for use, it is necessary to break the shield 3, which preferably is of a molded synthetic lresin although any readily breakable material may be used, and is provided with a weakened point to facilitate breaking. The weakened point may be provided by a general thin shell construction or may be provided with an annular V-shaped notch 23 immediately beneath the annular groove 6 adjacent the top of the clamping member I0. Preferably the shield 3 is broken by swinging the nozzle 2 sideways. It will be understood that in swinging the nozzle 2 the greatest stress will occur at a point adjacent to the top of the clamping member I0 so that whether`- or not a notch 23 is provided the shield 3l will tend to break at this point.

Whether or not the nozzle 2 has been broken out of the shield 3 for use or because of tampering, the fact that shield 3 is broken will immediately be apparent to the casual observer indicating that the nozzlez and the fire extinguisher should be inspected and a new shield 3 applied. In order to reassociate the nozzle 2 with a new shield 3, after the shield 3 has been broken it is first necessary to remove the cylindrical portion 8 from the bore 9. This is accomplished by removing the screw 3 with a screwdriver passing downwardly through a bore, 24 provided through the center of the cylindricalportion 8. The cylindrical portion 8 may then be removed with the spring clip Il and the spring clip II again secured in the bore 9 to receive the cylindrical portion 8 of a new shield 3.

f In Fig. is disclosed another form of support for the clamping member I0. Instead of supportingthe clamping member I0 from a wall bracket 2l, as shown in Fig. l, the clamping member I0 is supported from a bracket 21 suitably secured around the base of the iire extinguisher 28 with which the nozzle 2 is associated.

Another form of the invention is disclosed in Fig. 6. In this form of the invention the clamping member for clamp-ing the halves 4 of the shield 3 of the nozzle 2 is in the form of a cup 29, having the spring clip II molded in the base 30 of the cup 2S. Also the cup 29, which is not supported but is merely suspended from the shield 3, may be provided with an annular V- shaped notch 3l providing a weakened portion thereof.

- The operation of the construction disclosed in Fig. 6 is similar to that of the construction disclosed inFig. l except that either the shield 3 may be broken at the groove 23 or the clamping cup 29 may be broken at the groove 3| to release the nozzle 2 for use. The essential dierence between the construction disclosed in Fig. 6 and that disclosed in Fig. 1, is that whereas in Fig. 1 after use of the nozzle 2 it is merely necessary to replace the shield 3, in the construction of Fig. 6 it is necessary to replace both the shield 3 and the clamping cup 29.

It will be apparent from the foregoing specification that we have provided a construction which not only reveals the fact that a fire hose nozzle has been tampered with, but also discourages tampering because a nozzle which has been tampered with will` readily indicate such a fact by the broken shield 3. While we have described certain forms which the invention may take, it

is to be understood that within the broad scope of the invention other forms may be employed. Also, it is contemplated that the invention may be applicable to other dispensing nozzles than fire hose nozzles.

Having thus described our invention what we desire to secure by Letters Patent and claim is:

1. In combination with a movable dispensing nozzle having an operative opening, a shield for said nozzle disposed over said opening, said shield being in the form of two halves, means for clamping halves of said shield on said nozzle and against removal therefrom, and means for relatively rigidly supporting said shield so as to position said nozzle.

2. In combination with a dispensing nozzle having operative opening, a shielding member for .said nozzle disposed over said opening, said shielding member being in the form of two halves, and aclamping member for clamping said halves of said shielding member on said nozzle and against removal therefrom, one of said members being frangible, whereby to use o1' tamper. withsaid nozzle it is necessary to break said frangible member.

- 3. In combination with a dispensing nozzle having an operative opening. a shield for said nozzle disposed over said opening, and means to clamp said shield on said nozzde against removal therefrom, said clamp comprising a member having an opening for receiving said shield, said 'shield and member having one way clutch mechanism associated therewith for permitting the entrance` of said shield intoV said opening but pre-l 4. In combination with adispensing nozzle having an operative opening, a shielding member for said operative opening disposed over the end of said nozzle, said shielding member being in the form of two halves, a clamping member for the aforesaid halves having an opening therein into which said shielding member is adapted to be inserted for preventing separation of said halves,` and means to maintain said clamping member and shielding member in assembled relation, one of said members being frangible, whereby to use or tamper with said nozzle it is necessary to break one of said members.

. 5. In combination with a dispensing nozzle having operative opening, a shielding member disposed over the end of said nozzle to protect said opening, said shielding member being constructed of two halves, a clamping member having an opening therein for receiving said halves.v for clamping said halves on said nozzle and against removal therefrom, and one way clutch mechanism between said clamping member and said shielding member for permitting the entrance of said shielding member into said clamping member, but preventing withdrawal of said shielding member from said clamping. member, one of said members being irangible, whereby to use or tamper with said nozzle it is necessary to break one of said members.

6. In combination with a dispensing nozzle having an operative opening, a shielding member for said nozzle disposed over said opening, said shielding member being in the form of two halves, and a cup member for disposal over said shielding member for clamping said two halves on said nozzle, one of said members being frangible whereby to use ortamper with said nozzle itis necessary to break onevof said members. e

1 7. In' combination with a dispensing nozzle having an operative opening, a shielding member for said nozzle disposed over said opening, said shielding member being in the formof two halves, a. cup member for disposal over said halves for clamping said halves on said nozzle, and one way clutch mechanism within said cup member for gripping said shielding member and preventing the withdrawal of said shielding member from said cup member, one of said member beingfrangible whereby to use or tamper with said nozzle it is necessary to break one of said members.

8. In combination with a nozzle having an operative opening, a shielding member for said noz- 

